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Ask QuestionPosted by Sai Mohan 6 years, 6 months ago
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Bindhu Sathyan 6 years, 6 months ago
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Meghna Thapar 5 years, 10 months ago
A Zoo is an artificial habitat in which all animals are housed within enclosures, displayed to the public, and in which they may also breed. However, a Wildlife Sanctuary is a protected area of land which is created for the protection of wild animals in their natural environment like forests.
Posted by Pooja Manyal 6 years, 6 months ago
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Meghna Thapar 5 years, 10 months ago
Some of the microorganisms present in the soil can fix nitrogen gas from the atmosphere to form nitrogen compounds. These nitrogen compounds mix with the soil and increase the fertility of the soil. Example – some bacteria and blue-green algae. Such microbes are commonly called as biological nitrogen fixers.
Posted by Funky Girl 6 years, 6 months ago
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Meghna Thapar 5 years, 10 months ago
Banana is a fruit with lot of nutrients
It contains potassium in higher quantity which will help control hypertension.
Posted by Amisha Babu 6 years, 6 months ago
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Meghna Thapar 5 years, 10 months ago
The pressure exerted by air around us is known as atmospheric pressure.
Take a good quality rubber sucker. It looks like a small rubber cup. Press it hard on a smooth plane surface. When we press the sucker, most of the air between its cup and the surface escapes out. The sucker sticks to the surface because the pressure of atmosphere acts on it. To pull the sucker off the surface, the applied force should be large enough to overcome the atmospheric pressure. This activity shows the magnitude of atmospheric pressure.
Posted by Neeru Aggarwal 6 years, 6 months ago
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Dipakshi Bimala 6 years, 6 months ago
Yogita Ingle 6 years, 6 months ago
Lubrication is the control of friction and wear by the introduction of a friction-reducing film between moving surfaces in contact. The lubricant used can be a fluid, solid, or plastic substance.
Posted by Srujan Y 6 years, 6 months ago
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Kunal Parashar 6 years, 6 months ago
Posted by Chaitnya Walunj 6 years, 6 months ago
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Sia ? 6 years, 6 months ago
Used in skin-softening salon and spa treatments on the hands, cuticles, and feet because it's colorless, tasteless, and odorless. It can also be used to provide pain relief to sore joints and muscles.
Posted by Rudra Pratap 6 years, 6 months ago
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Sia ? 6 years, 6 months ago
A person sleeping in such room gets carbon monoxide poisoning. CO combines with Hb more readily than oxygen forming carboxyhaemoglobin. This reduces the amount of free Hb available for carrying O2. Thus, the tissue is starved of O2. This is the reason why it is not advisable to sleep in closed rooms warmed with coals.
Posted by Abarna Abarna Anbazhagan 6 years, 6 months ago
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Yogita Ingle 6 years, 6 months ago
Food is the basic necessity for survival of human beings and animals. Carbohydrates, vitamins, fats, minerals, proteins are some of the nutrients found in our food which keeps us healthy, help us grow and keeps us free from diseases. Each one of us have different food habits based upon the place we live.
Posted by Malay Patra 6 years, 6 months ago
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Yogita Ingle 6 years, 6 months ago
Newton’s first law of motion states that “A body at rest or uniform motion will continue to be at rest or uniform motion until and unless a net external force acts on it”. Suppose a block is kept on the floor, it will remain at rest until we apply some external force to it. Also, we know that it takes us more effort or force to move a heavy mass. This is directly related to a property known as Inertia. This law is also known as the law of inertia.
Newton’s second law of motion: The first law has already given us a qualitative definition of force. Now we are interested in finding out its magnitude. According to Newton’s second law of motion, the net force experienced by a body is directly proportional to the rate of change of momentum of the body.
Newton’s third law of motion: According to Newton’s third law of motion, for every action, there is an equal and opposite reaction. Forces are always found in pairs. For instance, when you sit on a chair, your body exerts a force downward and that chair needs to exert an equal force upward or else the chair will collapse.
Posted by Advitiya Bansal 6 years, 6 months ago
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Posted by Vrinda Garg 6 years, 6 months ago
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Sia ? 6 years, 6 months ago
A biodiversity hotspot is a biogeographic region that is both a significant reservoir of biodiversity and is threatened with destruction.
Posted by Priyanshee Soni 6 years, 6 months ago
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Meghna Thapar 5 years, 10 months ago
A synthetic fibre is a polymer made up of a chain of small molecules joined together. These small molecules which join together to form a polymer are called monomers. Polymers are of two types – natural polymer and synthetic polymer. Cotton is made up of a natural polymer called cellulose in which glucose molecules are joined together one after the other.
A plastic is synthetic material which can be moulded into desired shape when soft and then hardened to produce a durable article.
Plastics are polymers. A number of articles made up of plastics are used in our daily life like water pipes, pens, combs, toothbrushes, toys, shoes, etc.
Posted by Aishwary Gupta 6 years, 6 months ago
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Meghna Thapar 5 years, 10 months ago
Activity to show that iron is more reactive than copper:
i. Take an iron nail.
ii. Take a beaker and make a copper sulphate (white crystals) solution in it.
iii. Now dip the iron nail in the copper sulphate.
iv. Leave the dipped iron nail in the solution for a few minutes.
We will observe that the copper sulphate solution which is blue becomes green in colour. This means iron has displaced copper from its sulphate and formed a new compound, i.e., ferrous sulphate which is green in colour.
Posted by Abcd Efgh 6 years, 6 months ago
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Yogita Ingle 6 years, 6 months ago
Rahat: In this method, buckets are knotted with rope on wheel and then bulls rotate the handle due to which wheel turned up and then water gets filled into the bucket and used for different purposes.
Posted by Manju Sss 6 years, 6 months ago
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Posted by Ikram Ahmed 6 years, 6 months ago
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Yogita Ingle 6 years, 6 months ago
Force can have any or all of the following effects on the object on which it is applied.
- Force can change the speed of an object (Batsman hitting a ball very hard)
- Force can change the direction of motion of an object (Batsman hitting a ball very hard)
- Force can change the shape of an object. (When an elastic is pulled hard, it breaks)
- Force can move an object from rest to a state of motion (Bowler picking up a ball and then bowling it)
Posted by Harsh Patidar 6 years, 6 months ago
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Posted by Anuja Anuja 6 years, 6 months ago
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Yogita Ingle 6 years, 6 months ago
The germs / pathoogens will pass from the other person's body to our body and we will also suffer from common cold. Germs can pass very easily and we should make sure that it doesnt pass by taking precautions.
Posted by Sanjay Kumar 6 years, 6 months ago
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Satyam Krishna 6 years, 6 months ago
Disha Sharma 6 years, 6 months ago
Yogita Ingle 6 years, 6 months ago
Kharif crops: The crops which are sown in the rainy season are called kharif crops. They are grown between the months of June to September and are completely depend on monsoons. Example: Paddy, maize, cotton, soyabean, groundnut etc.
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Shakti Dave 6 years, 6 months ago
2Thank You